INDUCTIVE EFFECT

What is the order of basicity of the following compounds?CH₃​NH₂​,(CH₃​)₂​NH,(CH₃​)₃​N (in protic solvent)

• (CH₃​)2​NH > CH₃​NH₂ ​> (CH₃​)_3​N

• (CH₃​)₂​NH < CH_3​NH₂ ​< (CH₃​)₃​N

• (CH₃​)2​NH > (CH₃​)_3​ > CH_3​NH₂​N

• None of these

Pyridine is less basic than triethylamine because

• Pyridine has aromatic character

• Nitrogen in pyridine is sp2 hybridized

• Pyridine is a cyclic system

• In pyridine, lone pair of nitrogen is delocalized

select the acid with highest k_a

• 
• 
• 
• 

• x<y<x

• y<z<x

• z<x<y

• z<y<x

Decreasing order of acidity

• cyclohexanol > phenol > cyclohexane carboxylic acid

• cyclohexane carboxylic acid > phenol > cyclohexanol

• cyclohexanecarboxylic acid > cyclohexanol >phenol

• cyclohexanol > cyclohexanecarboxylic acid >phenol

What is the acidic strength order of CHF_3, CHCl₃, CHBr₃ and CHI₃?

• CHF₃>CHCl₃>CHBr₃>CHI₃

• CHCl₃>CHF₃>CHBr₃>CHI₃

• CHBr₃>CHI₃>CHCl₃>CHF₃

• CHI₃>CHBr₃>CHI₃>CHCl₃

which is more acidic

• a

• b

which is more basic

• a

• b

Which of the following carbon atoms is most electronegative?

III II I

CH – CH – C ≡ CH

• III

• II

• I

• ALL

Relative basic strength of amines does not depend upon ____________

• Inductive effect

• Mesomeric effect

• Steric effect

• Stabilisation of cation by hydration